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Assistant Professor at Sam Houston State University at -

Kellogg School of Management

Clinical Professor of Finance at Kellogg School of Management

Booth School of Business

Richard O. Ryan Professor of Economics and Neubauer Family Faculty Fellow at Booth School of Business

Kellogg School of Management

ConAgra Brands Research Professorship in Strategic Management Professor of Strategy at Kellogg School of Management

Sanford School of Public Policy

Harvard T.H. Chan School of Public Health

William R. and Thomas L. Perkins Professor of Law at Sanford School of Public Policy

Co-Director, Rethinking Regulation William R. and Thomas L. Perkins Professor of Law Professor of Environmental Policy Professor of Public Policy at Harvard T.H. Chan School of Public Health

Kellogg School of Management

Associate Professor of Marketing at Kellogg School of Management

The Wharton School

Elizabeth F. Putzel Professor at The Wharton School

American University School of Public Affairs

Adjunct Instructor at American University School of Public Affairs

Stockholm School of Economics

Affiliated Researcher at Stockholm School of Economics

Harvard Medical School

Professor of Medicine at Harvard Medical School